1394351620

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{141991}}^1$

素因数の和:142491

約数の個数: 24

約数和(自身を含む): 2934122688

約数和(自身を除く): 1539771068

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 141991, 283982, 567964, 709955, 1419910, 2839820, 69717581, 139435162, 278870324, 348587905, 697175810, 1394351620]

約数ペア:

[(1, 1394351620), (2, 697175810), (4, 348587905), (5, 278870324), (10, 139435162), (20, 69717581), (491, 2839820), (982, 1419910), (1964, 709955), (2455, 567964), (4910, 283982), (9820, 141991)]